pacman creating new folders download-XXXXXX in /var/cache/pacman/pkg

vids · 2025-01-01 21:58:04

Hey,

The command:

sudo pacman -U https://www…../download

display:

:: Retrieving packages...
 alpmtmp.mf2Iro                                                           85.7 KiB  75.0 KiB/s 00:01 [-----------------------------------------------------------] 100%
loading packages...
error: '/var/cache/pacman/pkg/download-GcZXdn/alpmtmp.mf2Iro': could not find or read package

And yes, there is not a download-xxx folder.

journalctl -f

just shows that I log as root.

Have been seeking unsuccessfully for a while...
Any clue?

Last edited by vids (2025-01-01 21:58:18)

WorMzy · 2025-01-01 22:46:52

Can confirm. It seems pacman renames the downloaded file, then unlinks the sigfile and rmdirs the tmpdir, but then uses the old tmpdir path to try and "load" the package.

# strace pacman -U https://archlinux.org/packages/extra/x86_64/0ad/download/
[...]
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14971, si_uid=955, si_status=0, si_utime=3 /* 0.03 s */, si_stime=3 /* 0.03 s */} ---
getuid()                                = 0
newfstatat(AT_FDCWD, "/var/cache/pacman/pkg/download-25eFnH/alpmtmp.RoEPTi", {st_mode=S_IFREG|0644, st_size=14766873, ...}, 0) = 0
chown("/var/cache/pacman/pkg/download-25eFnH/alpmtmp.RoEPTi", 0, 0) = 0
umask(000)                              = 022
umask(022)                              = 000
chmod("/var/cache/pacman/pkg/download-25eFnH/alpmtmp.RoEPTi", 0644) = 0
rename("/var/cache/pacman/pkg/download-25eFnH/alpmtmp.RoEPTi", "/var/cache/pacman/pkg/alpmtmp.RoEPTi") = 0
)                   = 4
openat(AT_FDCWD, "/var/cache/pacman/pkg/download-25eFnH/", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
fstat(6, {st_mode=S_IFDIR|0700, st_size=36, ...}) = 0
getdents64(6, 0x62941746c9e0 /* 3 entries */, 32768) = 88
unlink("/var/cache/pacman/pkg/download-25eFnH//alpmtmp.RoEPTi.sig") = 0
getdents64(6, 0x62941746c9e0 /* 0 entries */, 32768) = 0
close(6)                                = 0
rmdir("/var/cache/pacman/pkg/download-25eFnH/") = 0
umask(000)                              = 022
mkdir("/var", 0755)                     = -1 EEXIST (File exists)
mkdir("/var/lib", 0755)                 = -1 EEXIST (File exists)
mkdir("/var/lib/pacman", 0755)          = -1 EEXIST (File exists)
umask(022)                              = 000
openat(AT_FDCWD, "/var/lib/pacman/db.lck", O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 000) = 6
write(1, "loading packages...\n", 20loading packages...
)   = 20
faccessat2(AT_FDCWD, "/var/cache/pacman/pkg/download-25eFnH/alpmtmp.RoEPTi.sig", R_OK, AT_SYMLINK_NOFOLLOW) = -1 ENOENT (No such file or directory)
faccessat2(AT_FDCWD, "/var/cache/pacman/pkg/download-25eFnH/alpmtmp.RoEPTi", R_OK, AT_SYMLINK_NOFOLLOW) = -1 ENOENT (No such file or directory)
write(2, "\33[1;31merror: \33[0m", 18error: )  = 18
write(2, "'/var/cache/pacman/pkg/download-"..., 87'/var/cache/pacman/pkg/download-25eFnH/alpmtmp.RoEPTi': could not find or read package
) = 87
close(6)                                = 0
unlink("/var/lib/pacman/db.lck")        = 0
[...]

# ls -l /var/cache/pacman/pkg/alpmtmp.RoEPTi
-rw-r--r-- 1 root root 14766873 Jan  1 22:40 /var/cache/pacman/pkg/alpmtmp.RoEPTi

Please file a bug report against pacman.

vids · 2025-01-01 23:35:33

I didn't know the strace command. Super cool! ))

I have downgraded pacman and now things work.

Thank for the help!

Allan · 2025-01-02 07:30:59

I'm fairly sure there is a bug filed already. I just don't care about links without filenames in them, so doubt it will ever be fixed...

Arch Linux

#1 2025-01-01 21:58:04

pacman creating new folders download-XXXXXX in /var/cache/pacman/pkg

#2 2025-01-01 22:46:52

Re: pacman creating new folders download-XXXXXX in /var/cache/pacman/pkg

#3 2025-01-01 23:35:33

Re: pacman creating new folders download-XXXXXX in /var/cache/pacman/pkg

#4 2025-01-02 07:30:59

Re: pacman creating new folders download-XXXXXX in /var/cache/pacman/pkg

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